Make a BackgroundWorker do several operations sequentially without freezing the form

Question

I have already asked a somwhat similar question here but I now have a follow-up question.

I need to launch the external program several times in a row, but I have se

Answer 1

The fact that you have a while (bgwkSVN.IsBusy) { } in your main form thread is why your form stops responding. The background worker is executing it's work on a separate thread but your UI thread is blocked. You should consider starting one RunWorkerAsync() method in the MergerRevisions call and then start the next in the bgwkSVN.RunWorkerCompleted event.

If you're looking for a nasty quick fix that is the wrong way to do it here it is:

Change:

while (bgwkSVN.IsBusy) { }

To:

while (bgwkSVN.IsBusy) 
{
    System.Threading.Thread.Sleep(1000); // Make the current (UI/Form) thread sleep for 1 second
    Application.DoEvents();
}